Not only does the following scene from this week’s episode of The CW‘s “DC’s Legends of Tomorrow” feature the entire team in action, using their powers to their fullest, it also has a blink-and-you’ll-miss-it cameo from one of “Arrow’s” biggest villains.

At the :10 mark, just over the left shoulder of Captain Cold, Damian Darhk (Neal McDonough) makes a brief appearance. While the extent of his role in the episode remains unknown at this time, and he doesn’t join in on the ensuing fight, Darhk figured prominently in the photos the network released of the episode earlier this week, indicating he’s of some importance to the episode’s plot.

STEIN VS. STEIN – Tipped off to Vandal Savage’s (guest star Casper Crump) whereabouts, the team infiltrates a munitions deal with Professor Stein (Victor Garber) as their leader. Surrounded by some of the toughest criminals in the world, things quickly go from bad to worse when Savage realizes they don’t belong there. A massive fight ensues and a piece of the Atom’s (Brandon Routh) suit falls off and into the wrong hands, which could potentially cause disastrous consequences in the future. Stein realizes the best way to retrieve the missing piece is to contact a brilliant man – his younger self. He, Sara (Caity Lotz) and Jax (Franz Drameh) head off in search of young Martin Stein (guest star Graeme McComb), much to Rip’s (Arthur Darvill) consternation. Meanwhile, Snart (Wentworth Miller) and Rory (Dominic Purcell) plan to steal a key element in defeating Savage but still unsure of his new teammates, Ray (Brandon Routh) demands to come along on the mission. Carter (guest star Falk Hentschel) helps Kendra (Ciara Renee) remember something vital. Glen Winter directed the episode written by Phil Klemmer & Marc Guggenheim and Greg Berlanti & Andrew Kreisberg (#102).